Every EMF number, with its unit, its basis and its source

Direct answers

Short, cited answers to what people actually ask, each linked to the records behind it.

Collections

• Standards & frameworks25 records

  The bodies and documents that set exposure values, separated into legally enforceable regulation, scientific guidelines, and precautionary frameworks.

• Exposure limits55 records

  Individual numeric exposure limits and precautionary values, each with its quantity, unit, frequency band, averaging time, population and citation.

• Quantities & units7 records

  The physical quantities used in EMF work, their units, exact conversion factors, and the formulas relating them.

• Sources & emitters28 records

  Everyday EMF sources with emission bands, transmit power, duty cycle, field strength by distance, and mitigations ordered by effectiveness.

• Instruments12 records

  Measurement instrument classes: what each detects, what it cannot detect, the band it covers, and the criteria that separate a usable instrument from a toy.

• Meter models12 records

  Named meter models with the frequency band, mode structure, display range, accuracy and calibration position each manufacturer declares, and the measurements each model's own datasheet rules out. Every figure is a manufacturer specification, not an independent test of the instrument.

• Shielding & remediation10 records

  Shielding material classes and remediation measures with datasheet attenuation, grounding requirements, and documented failure modes.

• Shielding products16 records

  Named shielding products with the attenuation each manufacturer declares, pinned to the frequency, the layer or coat count and the test standard it was measured under, plus surface resistance, thickness, grounding requirement and what the figure does not cover. Every value is a manufacturer declaration for a flat sample, not an installed measurement.

• Research record13 records

  Key studies and hazard classifications, each stating what was found, what it can and cannot establish, and where it sits in the evidence base.

• Organizations21 records

  Regulators, standards bodies, health authorities, certifying institutes and advocacy groups, with jurisdiction and role.

• Measurement protocols7 records

  Reproducible measurement procedures: goal, equipment, ordered steps, pitfalls, and the limits to interpret results against.

• Glossary30 records

  Definitions of the physics, regulatory, measurement and health terms used throughout the dataset.

• Device SAR56 records

  Declared maximum SAR per phone model, at the ear and worn on the body, as published by the German Federal Office for Radiation Protection. These are the manufacturers' own compliance declarations averaged over 10 g of tissue, not independent measurements.

• Direct answers36 records

  Frequently asked EMF questions with short, cited, quotable answers linked to the underlying records.

Calculators

• Unit converter

  mG ↔ µT, V/m ↔ µW/m², W ↔ dBm — exact factors, with the far-field caveat stated where it applies.

• Distance and exposure estimator

  Free-space power density at a distance from a transmitter, compared against regulatory and precautionary values side by side.